package c3.Example04;
class Student{
    private String name;
    private int age;
    public String getName() {
        return name;
    }
    public  void setName (String name) {
        this.name =name;
    }
    public int getAge(){
        return age;
    }
    public void setAge(int age) {
        if (age<=0) {
            System.out.println("您输入的年龄有误！");
        }else{
            this.age = age;
        }
    }
    public void read(){
        System.out.println("大家好，我是"+name+",年龄"+age);
    }
}
public class Example04 {
    public static void main(String[] args) {
        Student stu =new Student();
        stu.setName("张三");
        stu.setAge(-18);
        stu.read();
    }
}
